Removal of selected nitrogenous heterocyclic compounds in biologically pretreated coal gasification wastewater (BPCGW) using the catalytic ozonation process combined with the two-stage membrane bioreactor (MBR)

2017 ◽  
Vol 245 ◽  
pp. 786-793 ◽  
Author(s):  
Hao Zhu ◽  
Yuxing Han ◽  
Wencheng Ma ◽  
Hongjun Han ◽  
Weiwei Ma
Keyword(s):  
Heterocyclic Compounds ◽  
Membrane Bioreactor ◽  
Coal Gasification ◽  
Catalytic Ozonation ◽  
Two Stage ◽  
Coal Gasification Wastewater ◽  
Ozonation Process

Treatment of coal gasification wastewater by membrane bioreactor hybrid powdered activated carbon (MBR–PAC) system

Chemosphere ◽  
2014 ◽  
Vol 117 ◽  
pp. 753-759 ◽  
Author(s):  
Shengyong Jia ◽  
Hongjun Han ◽  
Baolin Hou ◽  
Haifeng Zhuang ◽  
Fang Fang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Membrane Bioreactor ◽  
Coal Gasification ◽  
Powdered Activated Carbon ◽  
Coal Gasification Wastewater

Pilot-scale catalytic ozonation pretreatment for improving the biodegradability of fixed-bed coal gasification wastewater

2021 ◽  
Vol 148 ◽  
pp. 13-19
Author(s):  
Xiaoya Chen ◽  
Chunrong Wang ◽  
Longxin Jiang ◽  
Haiyan Li ◽  
Jianbing Wang ◽  
...  
Keyword(s):  
Coal Gasification ◽  
Fixed Bed ◽  
Pilot Scale ◽  
Catalytic Ozonation ◽  
Coal Gasification Wastewater

Heterogeneous Catalytic Ozonation of COD and Quinoline from Coal Gasification Wastewater Secondary Effluent with Carbon Supported Copper Oxides as Catalyst

2013 ◽  
Vol 316-317 ◽  
pp. 379-382 ◽  
Author(s):  
Hong Jun Han ◽  
Hai Feng Zhuang
Keyword(s):  
Coal Gasification ◽  
Catalytic Performance ◽  
Catalytic Ozonation ◽  
Radical Scavenger ◽  
Secondary Effluent ◽  
Heterogeneous Catalytic ◽  
Treatment Processes ◽  
Radical Removal ◽  
Coal Gasification Wastewater ◽  
The Stability

Coal gasification wastewater (CGW) is a refractory and toxic wastewater. The secondary effluent quality usually cannot meet the discharge standards after conventional biological treatment processes. Heterogeneous catalytic ozonation is a promising technology for solving this problem. Two carbon materials were investigated as ozonation catalysts for the removal of the quinoline and COD in a real CGW secondary effluent. Results were indicated that CuOx /GAC presented a higher catalytic performance than granular activated carbon and single ozone, efficiency of removal of quinoline and COD were 69%, 92% respectively. Higher pH had positive effect on the degradation of quinoline due to the formation of hydroxyl radical (removal of quinoline rapidly reached above 90% in pH=10). The presence of the radical scavenger tert-butanol (TBA) evidenced the participation of hydroxyl radicals (•OH) in the oxidation mechanisms of quinoline. The stability of the catalysts was demonstrated by carrying repetitive experiments reusing catalysts sample.

Sign in / Sign up

Export Citation Format

Share Document